What makes a balloon float in the air?
Keeping it simple, explain to your preschoolers that Helium is a gas. Not a liquid gas like moms and dads put in their cars to make them go, but a vapor, a gas that we can't see. Helium is stored in a jar and can be used to inflate balloons. Helium is lighter than the air we breath, its weight is what makes it float, Up Up, U-p!
You will need:
A Helium filled Balloon for each of your preschoolers.
A black marker.
You will do:
Have each child write the letter U on their balloon with a marker, U is for Up!
Take your preschoolers outside and give out the balloons.
Have them make a WISH of course, and on the count of 3 shout
"U is for UP!!!" and release your balloons, sending them up into the sky.
Please Note: Although the danger was considerable,
none of our preschoolers flew away today on the end of their balloon string.
Not a one.